- 12 - 



Okla. A Study of Chlorosis of Certain Woody Omsmentals in 



Oklahoma , To find the most satisfactory combination of chemicals 

 and concentrations, and methods of application to correct the 

 conditions causing chlorotic foliage of Pin Oaks, Thunberg spireas, 

 and other affected plants under Oklahoma climatic and soil con- 

 ditions • 



Hort. 866 



Pa, Factors Influencing Asexual Propagating of Horticultural 



CropsT to (1^ investigate influence of parent materials on the 

 quality of propagating stock; (2) the influence of soil and air 

 temperatures, soil moisture and atmospheric humidity; and light 

 intensity and duration on asexual propagation responses; (3) 

 influence of various chemical treatments on propagation responses 

 of various plant species; and (/») determine usefulness of anti- 

 transpirants in asexual propagation of various species and strains, 

 Hort, 123 1-A 



Pa, Light and Temperature Effects on the Growth of Greenhouse 



Roses, To study the effect of various night temperatures in relation 

 to natural light conditions upon the flower production and keeping 

 quality of greenhouse roses, 

 Hort, 1232-B 



Pa, The Physical and Chemical Properties o»f Ch'eenhouse Soil 



Mixtures , Learn (1) particular chemical and physical properties 

 of greehhouse soil mixtures as a basis for soil preparation and 

 fertilization; (2) effects of various soil amendments on the 

 chemical and physical properties of greenhouse soil mixtures and 

 on leaching of nutrients from these mixtures; (3) study the 

 interaction of various soil amendments and cultural practices on 

 yield and quality of floricultural crops, 

 Hort, 1313-A 



Pa, The Nutrient Requirements of Floricultural Crops , Learn (1) 



the balance between and degree of saturation of various nutrient 

 elements and their effects on yield and quality; (2) critical 

 values for nutrient elements where deficienc symptoms occur j (3) 

 establish liquid fertilization programs; (4) learn relationship 

 between rapid soil tests and fertilization programs, 

 Hort, 1313-B 



S, C. A Study of the Effect of Herbicides on Weeds in Some 



Ornamental Nursery Stock ^ To learn (1) herbicides most effective 

 in weed control, and (2) which are least injurious to nursery 

 stock, 



Hort,, Bot, 90 



